In 1972 where was the major source of opium grown that was used for US heroin and where was it converted? HELP PLZ!!

American college students invented football by combining what two sports?

If scientists are trying to use what they know about hsv to devise a means of protecting other people from being infected, which of the following would have the best chance of lowering the number of new cases of infection? a) vaccinate of all persons with preexisting cases of hsvb) interfere with new viral replication in preexisting cases of hsvc) treat hsv lesions to shorten the breakoutd) educate people about avoiding sources of infection

Define physical activity. question 3 options: bodily movement produced by the contraction of muscles planned and structured exercise the ability to perform rigorous activity all the above